In the DBA workbench, double click on the demo DB (usually DB12).
Click on New.
There will be a lot of boxes to be filled in for each field.
TYPE … ignore for now
Level … use 1 for all fields
Short name … start with AA then AB etc
format/length … for now create several fields all A 10
suppresion … none
long alpha … none
Descriptor … make one field a descriptor so you can practice
After you have created a file, go to Natural . click on sysexddm (in system libraries).
specify the dbid and file number of the file you just created.
enter "user friendly " names for the fields AA AB etc.
stow the ddm
you are now ready to STORE records in the file.
Let me repeat what Ralph Zbrog said on another thread when answering one of your questions. This is not a training site.
That means this is not a site for people trying to learn enough Adabas/Natural to get a job. You will not learn enough to fool anyone.
If you are working for a company that uses Adabas/Natural you should ask your colleagues first. If they cannot answer a question, post it to the forum.
If you are in a Natural/Adabas class, and the questions pertain to homework, shame on you. Posting to the forum would be the same as copying from someone sitting next to you in a test.